A new CDC study finds that mRNA COVID-19 vaccines are highly effective in preventing COVID-19 among health care and other essential workers, groups more likely to be exposed to the virus because of their occupations. The study found that “partial” vaccination (two weeks after a single dose) with either a Pfizer-BioNTech or Moderna vaccine reduced the risk of infection by 80%. “Full” vaccination (two weeks after the second dose) reduced risk of infection by 90%. It takes about two weeks following each dose of vaccine for antibodies that protect against COVID-19 to develop. Learn more: bit.ly/MMWR32921.

CDC, profile pictureMay be a cartoon of 1 person and text that says 'mRNA COVID-19 vaccines are highly effective in preventing infections in real-world conditions COVID COVID-1 Nearly 4,000* health care personnel, f and essential workers were tested weekly for the virus that causes COVID-19 *Effectiveness Those who were fully vaccinated* were 90% less likely to get infected r-BioNTer ndModerna th”ci CDC.GOV bit.ly/MMWR32921 MMWR'


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